Powder package and gun



C. J. SHARPE POWDER PACKAGE AND GUN Aug. 24, 1937.

Filed Dec. 5, 1955 2 Sheets-Sheet l C(yo'e cf SIM/230 Aug. 24, 1937. c. J. SHARPE POWDER PACKAGE AND GUN Filed Dec. 5, 1935 2 sheetsgsheet 2 Patented Aug. 24, 1937 f UNITED STATES PATENT OFFICE Claims.

This invention relates to an improved package and gun for use in shipping and disseminating insect and other powders.

The primary object of the present invention 5 is to provide a package and gun of the above kind which is extremely simple and durable in construction, easy and economical to manufacture, convenient to use, and efiicient in operation.

A further object of the present invention is to provide a package or gun of the above kind including a bellows-like triangular receptacle, the

body of which is constructed and formed in a novel way from a single diamond-shaped blank of cardboard or like material, the apex of the receptacle being formed to provide a restricted discharge orifice or nozzle.

Further objects of the present invention are to provide a powder package and gun of the above kind including a compressible receptacle having a spring for normally yieldingly expanding the same and novel means for retaining the spring in its proper operative position within the receptacle; to provide simple and efilcient means for preventing. excessive discharge of the powder from the package and gun when the receptacle is compressed; to provide for convenient filling and refilling of the receptacle whenever the supply of powder therein is exhausted; and to provide a device which is otherwise so constructed and constituted as to meet with many requirements for a successful commercial use.

The objects and features of the present invention will become apparent from the following description when considered in connection with the accompanying drawings, in which:

Figure 1 is a plan view of a powder package and gun constructed in accordance with the present invention.

Figure 2 is a side edge elevational view thereof.

Figure 3 is a substantially central longitudinal section on line 33 of Figure 1.

Figure 4 is a longitudinal section on line |4 of Figure 2.

Figure 5 is an inside plan view of the blank 45 from which the body of the package is formed,

together with attached parts; and

Figure 6 is an outside plan view of the blank shown in Figure 5.

Referring more in detail to the drawings, the

50 present invention includes a compressible powder shipping package and gun of substantially triangular shape the body of which is formed from a single blank of cardboard or like material of elongated substantially diamond-shape as shown 55 in Figures 5 and 6. This blank cons s s of similar triangular portions 5 and 6 integrally joined at the bases thereof and adapted to be folded toward each other along the transverse medial line of the blank in a rounded fold as at I so that the package is given cubical dimensions with the side walls 5 and 6 thereof spaced apart and converging toward each other from the base to the apex of the package and from the longi-' tudinal medial line of the package to the sides thereof.

Formed on the side edges of the wall or portion 5 throughout the length thereof are narrow integral flaps 8 and 9 which are folded along the lines In and H onto the side margins of the wall or portion 6 and adhesively'secured to the latter. The apices of the Walls 5 and 5 are cut off on straight transverse lines as at l2 so that when the portions 5 and 6 are folded toward each other and joined at the sides by means of the flaps 8 and 9, a substantially triangular compressible receptacle of bellows-like form is had which is provided with a restricted slit-like discharge orifice or nozzle l3 at the apex thereof to reinforce the joints between the side edges of the Walls 5 and 6, strips of binding tape l4 are folded over these joints and adhesively secured in place. A further strip of binding tape I5 is folded around the apex of the receptacle or package and adhesively secured in place to additionally reinforce the receptacle or package at this point so that the apex of the package or receptacle may not be readily damaged in a way to cause enlargement of the discharge orifice or nozzle. 7

In compressing the sides of the package or receptacle to cause discharge of the powder therefrom, the rounded fold at 1 will be subjected to repeated bending, and to prevent this bending from resulting in cracking of the receptacle at this point, the latter is reinforced by transverse strips of adhesive tape as at l6.

Positioned within the package or receptacle centrally of the thicker or base end thereof is a helical compression spring I! whose ends bear against the side walls 5 and 6 and normally yieldingly distend the receptacle or to force the side walls 5 and 6 apart subsequent to manual compression thereof toward each other. In order to maintain the spring IT in its proper operative position, a pair of tongues l8 are struck inwardly from the blank at opposite sides of its transverse medial line, and these tongues are threaded through the end convolutions of the spring I! as clearly shown in Figures 3 and 5. It will be particularly noted that the tongues I8 taper wider toward their free ends to a width greater than the diameter of the convolutions of spring I! so that when the tongues l8 are forcibly threaded through the end convolutions of said spring ll, they cannot become accidentally disengaged from said tongues. The formation of tongues 18 and the engagement of spring I! therewith is accomplished prior to folding the blank, as indicated in Figure 5, and it will be 10 apparent that when the blank is folded the tongues l8 will be located to extend from the side walls 5 and 6 adjacent the base of the package or receptacle and centrally of said base where the package or receptacle is thickest.

By striking the tongues 28 from the blank, the latter is provided with a longitudinal elongated slot or opening I9, and applied to the outer face of the blank to close this opening is a sheet of adhesive cloth which is highly flexible and 20 becomes inwardly crinkled and folded longitudinally as shown in Figures 1 and 4 when the receptacle or package is fully expanded. By reason of this construction, there is a distinct movement of the corner portions of the package or receptacle at the base of the latter toward and away from each other when the package is alternately released and compressed at points coincident with the ends of the spring II. This gives an efficient bellows action, and at the same time provides a very durable package able to withstand continued severe use.

A fiexible strip 2! of cardboard or the like has one end attached by adhesive to a side wall of the package or receptacle within and midway between the sides of the latter, and this strip extends longitudinally from its point of attachment toward the apex of the package or receptacle but a distance rearwardly of the discharge orifice [3. Located beneath the free forward end 40 portion of the strip 2! is a body of mineral wool 23 or equivalent loose fibrous material which completely fills the space within the package or receptacle immediately inwardly of the discharge orifice l3. The strip 2i holds the material 23 in position or against rearward displacement, and

the purpose of this material 23 is to prevent discharge of powder from the package or receptacle unless forcibly projected therefrom'through the body of material 23 by compression of the package or receptacle, the material 23 being sufficiently porous to permit proper forcible discharge of the powder therethrough to and out of the orifice l3 when the package is compressed.

Provided centrally in the wall 6 is a filling opening 24 to facilitate placing of powder within the package or receptacle behind the body 23. This filling opening 24 may be temporarily closed by a sheet of paper or like material adhesively secured to the wall 6 so as to cover the opening 24, By puncturing the closure strip 25, the package or receptacle may be conveniently refilled and then closed by a new closure strip or sheet.

In practice, the present package or receptacle is preferably wrapped with transparent material,

and the orifice I3 is closed until the device is desired for use, by means of a paper clip or fastener of conventional form applied over the apex of the package or receptacle.

i What I claim as new is:

1 0 1. A compressible powder shipping package and gun of elongated substantially triangular shape, formed from a single substantially diamond shaped blank of cardboard folded along the transverse medial line thereof and having opposite side 75 walls converging longitudinally from the base of the package to contacting relation at the apex of the package and converging laterally from the longitudinal center of the package toward and directly joined in contacting relation at the side edges of said walls, the apices of said side walls being cut off straight to provide a discharge nozzle at the apex of the package.

2. A compressible powder shipping package and gun of elongated substantially triangular shape, having opposite side walls converging longitudinally to contacting relation at the apex of the package and converging laterally toward and directly joined at the side edges thereof, the apices of said side walls being cut off straight to provide a discharge nozzle at the apex of the package, a body of loose fibrous material crowded in the narrow end of said package adjacent but inwardly of the discharge orifice, and a retaining strip arranged within the package and attached at its inner end to one side wall of the package, said strip extending longitudinally of the package forwardly from its point of attachment and overlying said body of fibrous material to retain the same in place.

3. A compressible powder shipping package and gun of elongated substantially triangular shape, formed from a single substantially diamond shaped blank of cardboard folded along the transverse medial line thereof and having opposite side walls converging longitudinally from the base of the package to contacting relation at the apex of the package and converging laterally from the longitudinal center of the package toward and directly joined in contacting relation at the side edges of said walls, the apices of said side walls being cut off straight to provide a discharge nozzle at the apex of the package, opposed tongues struck inwardly from said side walls and providing an opening in the base of the package centrally of the latter, and a helical compression spring arranged in the package near the base of the latter and having its end convolutions bearing against the opposed side walls of said package, said tongues being threaded through the end convolutions of said spring to retain the latter in place adjacent the base of the package, and a sheet of flexible cloth secured over and closing said opening.

4. A compressing powder shipping package and gun of elongated substantially triangular shape, having opposite side walls converging longitudinally to contacting relation at the apex of the package and converging laterally toward and directly joined at the side edges thereof, the apices of said side walls being cut off straight to provide a discharge nozzle at the apex of the package, opposed tongues struck inwardly from said side walls, and a helical compression spring arranged in the package with its end convolutions bearing againt the opposed side walls thereof, said tongues being threaded through the end convolutions of said spring to retain the latter in place adjacent the base of the package, said tongues tapering wider toward their free ends to a width greater than the diameter of the convolutions of said spring.

5. A powder shipping package and gun comprising a receptacle of substantially triangular shape and formed from a one-piece diamond shaped cardboard blank, said blank being folded upon a transverse medial line and being devoid of score lines at its transverse medial portion to cause the blank to assume a rounded fold when folded, one triangular portion of the blank having integral flaps along the side edges thereof adapted to be folded over onto the side margins of the other triangular portion of the blank and adhesively secured thereto to provide a direct connection and air-tight joint between the meeting side edges of said triangular portions of the blank, the apices of said triangular portions being squarely cut off to provide a discharge orifice when the blank is folded and secured, a pair of spaced tongues struck inwardly from the blank coinci- 10 dent with the longitudinal medial line thereof and at opposite sides of the transverse medial line of the same to provide a longitudinal elongated opening in the blank, a flexible cloth sheet secured. to the base of the receptacle over said opening to close and seal the latter, and a helical expansion spring for the package arranged between the sides of the receptacle near the base of the latter and having said tongues threaded through the end 'convolutions thereof.

CLYDE J. SHARPE. 

